Top U.S. intelligence officials gathered in the White House Situation Room in March to debate a controversial proposal. Counterterrorism officials wanted to create a government dragnet, sweeping up millions of records about U.S. citizens—even people suspected of no crime.

Not everyone was on board. “This is a sea change in the way that the government interacts with the general public,” Mary Ellen Callahan, chief privacy officer of the Department of Homeland Security, argued in the meeting, according to people familiar with the discussions.

A week later, the attorney general signed the changes into effect.

Thanks for the justice Holder.

The rules now allow the little-known National Counterterrorism Center to examine the government files of U.S. citizens for possible criminal behavior, even if there is no reason to suspect them.That is a departure from past practice, which barred the agency from storing information about ordinary Americans unless a person was a terror suspect or related to an investigation.

Now, NCTC can copy entire government databases—flight records, casino-employee lists, the names of Americans hosting foreign-exchange students and many others. The agency has new authority to keep data about innocent U.S. citizens for up to five years, and to analyze it for suspicious patterns of behavior. Previously, both were prohibited.

The changes also allow databases of U.S. civilian information to be given to foreign governments for analysis of their own. In effect, U.S. and foreign governments would be using the information to look for clues that people might commit future crimes.

The National Counterterrorism Center’s ideas faced no similar public resistance. For one thing, the debate happened behind closed doors.